test: drop test_tools_calendar_always_available

Tested that services/tools/_registry exposed event tools to the LLM
tool layer. That layer was removed in Phase 8 commit 91bafb6; event
CRUD is now covered via the MCP tools in test_mcp_tool_events.py.

tests/test_events_service.py

@@ -321,18 +321,6 @@ async def test_list_events_excludes_timed_event_that_already_ended():
         assert results == []
 
 
-@pytest.mark.asyncio
-async def test_tools_calendar_always_available():
-    """Calendar tools must appear in get_tools_for_user even without CalDAV."""
-    with patch("fabledassistant.services.tools._registry.is_caldav_configured", new_callable=AsyncMock) as mock_configured, \
-         patch("fabledassistant.services.settings.get_setting", new_callable=AsyncMock) as mock_setting:
-        mock_configured.return_value = False
-        mock_setting.return_value = "false"
-        from fabledassistant.services.tools import get_tools_for_user
-        tools = await get_tools_for_user(user_id=1)
-        tool_names = {t["function"]["name"] for t in tools}
-        assert "create_event" in tool_names
-        assert "list_events" in tool_names
-        assert "search_events" in tool_names
-        assert "update_event" in tool_names
-        assert "delete_event" in tool_names
+# test_tools_calendar_always_available removed in Phase 8 along with the
+# services/tools/ LLM-tool layer. Event CRUD is now exposed via MCP tools
+# (see tests/test_mcp_tool_events.py for coverage).